Process fob bebaibijffi bipks



T. DE LA MARE PROCESS FOR REPAIRING PIPES OriginalFiled June 11, 1924 INVENTOR ZZIOWQ'ZHMEE; Y

TTORN EY named a... 1s, 1928.

warren an n,lmn,- or saw macaw, UTAH.

rnoonss nnmamo dawns.

. {this emanates.m apmssarj r pmringpipe eaothem maiaee tv hauid and especially 1 wate wwhem ndfl .-nr e$s1 re- 'Ihe t princ pal objects are, it? :PIZQYldQ I 5 .Eirst. A simple, rapid an ewmmleel method of reuewinapartio all anyymn Second. A- methediwhich shalhbe 1.0 ient andiefiectnal.

I'Lhird. A method' .-which not requir highly .skill'eddabor in its practice, andw lch shallinot endanger] thapipe hue or othercontainer, or the safety 1 of. @the .lworkxnea .Whilfi i is repairs are .improgress; Y I

. ,Undenalmostanyt circnmstanc s leak a e liableto develop. intplpell nes, c mmencmise being decay in wooden PIPES, and corroslon in a metal Apipes. I Qrdinanily, tli iflow o water in service pipesiqaamottbe in emillpted. so as .to give times-for aepairmg l hfim, Willi resulting in a. considerable and c mm .Yh lfi fl Of-XWBtQI'Q 'tpmild i thetpin ihaemp md, an

remain empty long enough 1 (th .aena te o 1 it w lldg fi mathey matter its ,z eria a concrete sleeve RI'OHIQltlhQJPiPQ area, and u efi'eet ai ost eatla a te y repair or renewal. V a

. When a pipe is in service, however, itbecontest a. different. mattemto-iprm a concrete sleeve around a 'leakin portion, as the freshly placed concrete would with the water issuing from the leak. To take care of such an emergency is the purpose of this invention, and by means of the present v process, a pipe line can be effectually repaired while in service, in a way that makes the. repaired portionat least as good as when new.

In carrying m .improved process into effect, I provi 40 at may be termed a blister with which to cover the ipe at the points where leaks may exist. ach blister may comprise a casing or jacket of-metal sheets spaced apart from the outside surface of the pipe andfclosely sealed at the endsof the c.

JacketYSo asto form a trap foran water that maybe issuing from a leak in tepipe I The blister is provided with a drain so that any accumulating liquid maybe conducted away. When the blister with its drain is in place on the pipe, and while the liquid is draining, a shell of plastic'material, such as concrete, is formed around the blister, pref- 56 line or other-l quid cont ne Whik-ii l-WK su be ruined bycontact,

erably extending somewhat beyond the ends hereei- Whenth a a el lless ethe rew my b iiii gse t r y p m ne t y stopping the lea age.

The features of this invention for .yvhich h prot c i n ,1 Let e en is de ir d, are ll c e y am s d th a aim W11.- l sii g this pem n- .11 h drawin whi hfi lnstrates merely ne emh dmeeto ai -appar u y whi th nraa laam y b car ie in v Pr ti e,

Eigree esents a leng udiaa nte -se ion; r R

l ts-,2, a cresssec an 9n lin Qr-Qiig- 11;; .E g- 3, e enlarg men s i hstan -ial yitha p rt on c F g 2 ich istamc ase by h rok nl n B; v c he, v w in p pe i ao ah f hei ke and Fig. 5-, a section'of the pipe inperspectiye just before 1 the jacket- 1 is applied thereto.

Referring to the drawing, the numenaLlD ndie t asectiea otpipe. mad o in tanc of wood staves. In this pipe, we ,willsuppose, deck hare dev np mle he b n een: li e amend 14- I repa ring thespipellfirs term ablis e eventh nar tabe awa ted: he b ister may QB H t at two. hands q P astic cement, thehee s being. a iaelea ma eep e hetwe ara l sheetstlfi ae ili haeed-te e i qr stantially to the required curvature, and bound tightly together bywires 25. The said bands extend around the pipe substantially along the lines 12 and 14 and therefore are spacedapart from each other longitudinally along the pipe. The bands provide bearings and seals for the'longitudinal extremities of the jacket sheets, and serve to hold'the latter spaced apart circumferentially, from the outer surface of the pipe 10', as shownv in Fig. 1. Alon the two inner longitudinal margins of t e jacket sheet 17 are strips 18 of plastic cement, these strips being for the purpose of making tight jointsbetween the resp ective sheets, as clearly shown in Fig. 2.

At some convenient point of the blister may be'fastened a flange 19 in which is. threaded the nipple 24 followed. in turn, by the elbow 25 and the pipe 26, the latter extending to b any convenient point of discharge. 1

Afterthe blister with its drain has been put in place, the accumulating water is drained away, and whileso, draining, concrete or other like material is poured around the desired thickness.

After the concrete has set, the drain nipple is plugged, thus stopping the leakage.

The plugging may be accomplished by removing the pipe 26 and elbow 25 and screwing an ordinary pipe cap (not shown) onto the nipple, in the place of the elbow.

In order to be doubly sure of a good tight job, other bands 20, also of plastic cement, may be spaced apart outwardly from the bands 15, so as to form a liquidtight closure and elastic bearing for the ends of the finished shell.

Before applying the blister as above described, it may be desirable to thoroughly clean the surface of the pipe in the area to be repaired, and to cover this area with a liberal coat of creosote or other preservative.

While a specific embodiment of this invention is herein shown and described, it is to be clearly understood that all the detailed parts thereof, may or may not be shown in the preferred forms, and further, that the preferred forms may be varied from time to time, as the development of this invention and the arts to which it appertains, progress. 'Therefore, that which forms an essential and characteristic part of this invention, -will be'readily discernible from the claims in which its spirit is broadly generalized.

Having fully described my invention, what I claim is: i

1. The process for repairing containers confining liquid while in service, comprising forming a blister over the part to be repaired, forming a plastic body to enclose said blister, and draining said blister during the period of time required for said plastic body to set.

2. The process of repairing leaks in a pipe conducting liquid under pressure, comprising forming a blister around the leaky portion of said pipe, forming a concrete shell around said blister, draining said blister while said concrete is setting, and plugging the drain from said blister after said concrete has set.

3. The method of repairing leaks in a container confining liquid under pressure, comprising forming a blister substantially liquidtight around said container'and embracing the said leaks, placing a drain in said blister, forming a concrete acket around the said blister and the said drain, drawing off the accumulating liquid through said drain while said concrete is setting, and plugging said drain after said concrete has set.

4. A. method for repairing a pipe while conducting liquid under pressure, comprising forming a blister around said pipe, said blister comprising a jacket spaced radially a art from said ipe wit-h a plastic substance fil ing the space etween said jacket and said pipe at the ends of said jacket, placing a drain in said jacket, forming a shell of concrete around the said blisterand drain, draining said blister while the said concrete is setting, and plugging said drain after said concrete as set.

5. A method for repairing leaks in pipesv I sign my name hereto.

THOMAS DE LA MARE. 

